be: Factor out the common code to emit jump label names.

ir/be/amd64/amd64_emitter.c

@@ -632,8 +632,7 @@ static void emit_amd64_jmp(const ir_node *node)
 static void emit_jumptable_target(ir_entity const *const table,
                                   ir_node const *const proj_x)
 {
-	ir_node const *const block = be_emit_get_cfop_target(proj_x);
-	be_gas_emit_block_name(block);
+	be_emit_cfop_target(proj_x);
 	if (be_options.pic_style != BE_PIC_NONE) {
 		be_emit_char('-');
 		be_gas_emit_entity(table);

ir/be/arm/arm_emitter.c

@@ -226,15 +226,6 @@ static void emit_constant_name(const ent_or_tv_t *entry)
 	be_emit_irprintf("%sC%u", be_gas_get_private_prefix(), entry->label);
 }
 
-/**
- * Emit the target label for a control flow node.
- */
-static void arm_emit_cfop_target(const ir_node *irn)
-{
-	ir_node *block = be_emit_get_cfop_target(irn);
-	be_gas_emit_block_name(block);
-}
-
 void arm_emitf(const ir_node *node, const char *format, ...)
 {
 	BE_EMITF(node, format, ap, false) {
@@ -439,7 +430,7 @@ static void emit_jumptable_target(ir_entity const *const table,
                                   ir_node const *const proj_x)
 {
 	(void)table;
-	arm_emit_cfop_target(proj_x);
+	be_emit_cfop_target(proj_x);
 }
 
 static void emit_arm_SwitchJmp(const ir_node *irn)

ir/be/beemithlp.c

@@ -13,6 +13,7 @@
 #include "bedwarf.h"
 #include "beemitter.h"
 #include "be_t.h"
+#include "begnuas.h"
 #include "benode.h"
 #include "dbginfo.h"
 #include "debug.h"
@@ -85,3 +86,9 @@ be_cond_branch_projs_t be_get_cond_branch_projs(ir_node const *const node)
 	assert(projs.f && projs.t);
 	return projs;
 }
+
+void be_emit_cfop_target(ir_node const *const jmp)
+{
+	ir_node *const target = be_emit_get_cfop_target(jmp);
+	be_gas_emit_block_name(target);
+}

ir/be/beemithlp.h

@@ -78,6 +78,11 @@ typedef struct be_cond_branch_projs_t {
 
 be_cond_branch_projs_t be_get_cond_branch_projs(ir_node const *node);
 
+/**
+ * Emit the target label for a control flow node.
+ */
+void be_emit_cfop_target(ir_node const *jmp);
+
 #define BE_EMITF(node, fmt, ap, in_delay_slot) \
 	va_list ap; \
 	va_start(ap, fmt); \
@@ -99,7 +104,7 @@ be_cond_branch_projs_t be_get_cond_branch_projs(ir_node const *node);
 			be_emit_char('%'); \
 		} else if (*fmt == 'L') { \
 			++fmt; \
-			be_gas_emit_block_name(be_emit_get_cfop_target(va_arg(ap, ir_node const*))); \
+			be_emit_cfop_target(va_arg(ap, ir_node const*)); \
 		} else
 
 #endif

ir/be/ia32/ia32_emitter.c

@@ -267,15 +267,6 @@ static void ia32_emit_xmm_mode_suffix(ir_node const *const node)
 	be_emit_char(get_xmm_mode_suffix(attr->size));
 }
 
-/**
- * Emits the target label for a control flow node.
- */
-static void ia32_emit_cfop_target(const ir_node *node)
-{
-	ir_node *block = be_emit_get_cfop_target(node);
-	be_gas_emit_block_name(block);
-}
-
 void x86_emit_condition_code(x86_condition_code_t cc)
 {
 	switch (cc) {
@@ -772,8 +763,7 @@ void ia32_emit_jumptable_target(ir_entity const *const table,
                                 ir_node const *const proj_x)
 {
 	(void)table;
-	ir_node const *const block = be_emit_get_cfop_target(proj_x);
-	be_gas_emit_block_name(block);
+	be_emit_cfop_target(proj_x);
 	switch (be_options.pic_style) {
 	case BE_PIC_NONE:
 		break;
@@ -1268,7 +1258,7 @@ static void ia32_assign_exc_label(ir_node *node)
 	be_emit_char(':');
 	be_emit_pad_comment();
 	be_emit_cstring("/* exception to Block ");
-	ia32_emit_cfop_target(node);
+	be_emit_cfop_target(node);
 	be_emit_cstring(" */\n");
 	be_emit_write_line();
 }

ir/be/sparc/sparc_emitter.c

@@ -179,15 +179,6 @@ static void emit_fp_suffix(const ir_mode *mode)
 	}
 }
 
-/**
- * Returns the target label for a control flow node.
- */
-static void sparc_emit_cfop_target(const ir_node *node)
-{
-	ir_node *block = be_emit_get_cfop_target(node);
-	be_gas_emit_block_name(block);
-}
-
 /**
  * returns true if a sparc_call calls a register and not an immediate
  */
@@ -1173,7 +1164,7 @@ static void emit_jumptable_target(ir_entity const *const table,
                                   ir_node const *const proj_x)
 {
 	(void)table;
-	sparc_emit_cfop_target(proj_x);
+	be_emit_cfop_target(proj_x);
 }
 
 static void emit_sparc_IJmp(ir_node const *const node)